Kimmerz, there's a couple other current examples of what AJ is experiencing. My sitch is not quite as long standing as AJ's (at least in regards to our registration dates).
My W still spews or is very abrupt, from time to time. She still does not remember conversations with me. I have been keeping a boundary with her that all significant communications (which is pretty much everything except for the words spoken if she is around when I pick up D10) be through email. At one point a few months ago, she said I could friend request her again on FB (she had unfriended and blocked me a couple years ago) so we could communicate that way, she also wanted to communicate with me by text. I've said, "no thank you. email only." Otherwise, I'll never keep things straight. The spew... is always interesting... It's all very one sided as comm from me, which is generally a response to her comm, gets black holed, even if I'm asking for clarity.
Also, check out what's going on with In A Pickle (his last thread was locked in newcomers). His X is doing some bizarre attempts at reconnecting, like telling him her gfs are asking if he's seeing someone, she's rubbing his back at times, yet still remaining very distant and he's on edge, again.
Yes, it's annoying... frustrating... you name the emotion.
My W wanted flexibility in our contract, I said "follow by the letter". She got mad, things got better, she asked for flex, I submitted, I asked for flex, she said "follow by the letter".
gah...
It will only end when it ends, the best we can do is remain as separated from it as possible, yet still be as pleasant as possible to appropriately co-parent as our kids need.